Abstract: Based on the legal data of government supervision, this paper summarizes the historical stage, main contents, influencing factors and digital transformation of the institutionalized practice of local government supervision by using the comprehensive methods of text mining and empirical test. The text mining finds that the subject categories of the institutionalized practice of local government supervision can be summarized as safety production, government reform, economic construction, environment and public health. The empirical test finds that the "top-down" assessment factors of real estate investment, safety production management and environmental protection are the important driving factors of the institutionalized practice of local government supervision; and the development of network has significantly reduced the number of supervision laws and regulations issued by local government. Looking forward to the future, the improvement of supervision efficiency will be based on the digital transformation, focusing on information technology, social concern response and system construction. And it will also guide the deep integration of social autonomy, rule by virtue and rule by law in local governance.

Key words: local government, supervision, technology enabling, digital transformation